RN A2 CHEMISTRY LATEST 2021 (Graded A)

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What are all metric measurements composed of? Metric prefix and a basic unit of measure  What is the most commonly used temperature scale in the scientific community? Celsius or Centigrade  The nucleus of an atom contains or is made up of which of the following? Protons and neutrons  What is an atom that has a positive charge called? A cation  In the periodic table, what are the rows called? Periods  What is the atomic number? Number of protons  Which of the following describes the atomic mass? Average mass of that element's isotopes  Chemical equations are written in which manner? Reactants -> Products  What is the charge on potassium in the compound KCl? +1  A catalyst is a substance that accelerates a reaction by which of the following? Finding an alternate pathway for a reaction that requires less energy  Percent concentration of a solution is expressed as which of the following? Parts per 100 parts  What will one liter of a molar solution of any element contain? The atomic mass in grams of that element  Chemical bonding is the bonding of which of the following? One atom to another atom This study source was downloaded by 100000831988016 from CourseHero.com on 01-05-2022 04:35:45 GMT -06:00 https://www.coursehero.com/file/16694536/HESI-A2-CHEMISTRY/  Which of the following describes an ionic bond? It does not share electrons  What is the concentrationof 58.5 g of NaCl in 2 L of solution (atomic weights of each elements are as follows: Na=23g/mol, Cl=35.5g/mol)? 0.5 mol NaCl  In a redox reaction, which of the following describes reduction? It is the gain of electrons  What are acids? Hydrogen donors  What is a benefit of water's ability to make hydrogen bonds? High specific heat  What are bases or alkaline solutions? Hydrogen acceptors  Chemical reactions in living systems proceed along catabolic pathways, and there tends to be an increase in which of the following? Entropy  What is a pH of 7? Neutral  Which is the correct way to write Iodine (I) with an atomic mass of 131? I^131, I131, 131^I  What is the correct formula for magnesium chloride? MgCl2  What is the weakest of all intermolecular forces? Dispersion  Beta radiation is the emission of which of the following? An electron  Which of the following describes carbohydrates?

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RN A2 ALL FILES LATEST 2021 (GRADED A)

1. Anatomic position The body is erect, the feet are slightly apart, the head is held high, and the palms of the hands are facing forward 2. Which of the following is a structure found in the upper...

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